Hardness
Soft
37.8 PPM · 2.2 GPG
Local water dashboard
Official source aggregationA source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Shelby County.
At a glance
EPA quarter 2026Q2
Hardness
Soft
37.8 PPM · 2.2 GPG
Compliance screen
Review needed
1 active health-based record
Lead 90th percentile
0.0026 mg/L
17% of action level
Utility match
1 system
Serves 1,620 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
37.8 PPM
Parts per million
37.8
mg/L as CaCO₃ equivalent
Grains per gallon
2.2
1 GPG ≈ 17.1 PPM
What this means at home
At 37.8 PPM, mineral scale can build up on fixtures and heating elements, reduce soap lather, and leave visible spotting. Hardness is primarily an aesthetic and appliance concern—not itself a tap-water safety rating.
USGS sites used
17
Nearest site
23.5 mi
Observation range
Feb 25, 2016–Aug 4, 2025
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: Lk Murvaul Site CC nr Gary City, TX (Lake, Reservoir, Impoundment).USGS source documentation ↗
Regional context
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Joaquin median
38 PPM
About the same1 indexed ZIP readings · Range 37.8–37.8 PPM
Texas median
111 PPM
73 PPM lower1019 indexed ZIP readings · Range 5.4–500.5 PPM
EPA benchmark screen
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
Lead (PB90)
0.0026 mg/L
Reported Dec 31, 2025
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
1 comparable result
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 0.0026
EPA limit 0.015
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Public Notice | TX2100010 | Unaddressed | Apr 16, 2026 |
| Revised Total Coliform Rule | TX2100010 | Resolved | Feb 1, 2026through Feb 28, 2026 |
| Lead and Copper Rule | TX2100010 | Unaddressed | Dec 30, 2025 |
| Chlorine | TX2100010 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Chlorine | TX2100010 | Resolved | Jul 1, 2025through Sep 30, 2025 |
| Consumer Confidence Rule | TX2100010 | Unaddressed | Jul 1, 2025 |
| Public Notice | TX2100010 | Unaddressed | May 15, 2025 |
| Chlorine | TX2100010 | Resolved | Apr 1, 2025through Jun 30, 2025 |
| Chlorine | TX2100010 | Resolved | Jan 1, 2025through Mar 31, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | TX2100010 | Resolved | Oct 17, 2024through Apr 22, 2025 |
| LEAD AND COPPER RULE REVISIONS | TX2100010 | Resolved | Oct 17, 2024through Apr 22, 2025 |
| Chlorine | TX2100010 | Resolved | Oct 1, 2024through Dec 31, 2024 |
| Consumer Confidence Rule | TX2100010 | Resolved | Jul 1, 2024through Sep 20, 2024 |
| Chlorine | TX2100010 | Resolved | Apr 1, 2024through Jun 30, 2024 |
| Public Notice | TX2100010 | Resolved | Nov 1, 2023through Dec 19, 2023 |
| Public Notice | TX2100010 | Resolved | Oct 1, 2023through Dec 19, 2023 |
| Lead and Copper Rule | TX2100010 | Resolved | Dec 30, 2022through Jan 26, 2023 |
| Revised Total Coliform Rule | TX2100010 | Resolved | Oct 1, 2022through Oct 31, 2022 |
| Revised Total Coliform Rule | TX2100010 | Resolved | Sep 1, 2022through Sep 30, 2022 |
| Public Notice | TX2100010 | Resolved | Apr 15, 2022through Dec 19, 2023 |
No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.
Solutions matcher
Matched to Joaquin ZIP 75954 using 37.8 PPM nearby hardness and 1 reported measurement benchmarks.
No urgent match
This profile does not trigger a treatment recommendation. Test at the tap before investing in equipment.
Affiliate disclosure: we may earn a commission from qualifying purchases, at no added cost to you. Product matching is educational and does not replace certified water testing.
Frequently asked
EPA ECHO reports 1 active health-based violation among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.
Nearby USGS observations produce an estimate of 37.8 PPM, or 2.2 grains per gallon, classified as soft. This is not a household tap measurement.
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.